| Castricum to Grottaferrata | 832.03 mi (1,339.02 km) |
| Castricum to Grottaglie | 1,025.08 mi (1,649.71 km) |
| Castricum to Grottammare | 785.26 mi (1,263.76 km) |
| Castricum to Grugliasco | 533.54 mi (858.65 km) |
| Castricum to Grumo Appula | 976.56 mi (1,571.63 km) |
| Castricum to Grumo Nevano | 920.58 mi (1,481.53 km) |
| Castricum to Gualdo Tadino | 744.44 mi (1,198.06 km) |
| Castricum to Guardiagrele | 841.63 mi (1,354.47 km) |
| Castricum to Guastalla | 593.59 mi (955.28 km) |
| Castricum to Gubbio | 732.29 mi (1,178.51 km) |
| Castricum to Guspini | 918.90 mi (1,478.83 km) |
| Castricum to Gussago | 540.17 mi (869.31 km) |
| Castricum to Iesi | 737.64 mi (1,187.12 km) |
| Castricum to Iesolo | 603.89 mi (971.87 km) |
| Castricum to Iglesias | 932.67 mi (1,500.99 km) |
